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1779AS158 — ELBOW,PIPE TO TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

1779AS158: ELBOW,PIPE TO TUBE.

The ELBOW,PIPE TO TUBE is a the manufacturer industrial component. Key specifications include flow_angle: 90.0 DEGREES90.0 DEGREES, criticality_code_justification: FEATFEAT, reference_number_differentiating_characteristics: CLEANED IAW MIL-C-52211 CLASS D FOR OXYGEN SERVICECLEANED IAW MIL-C-52211 CLASS D FOR OXYGEN SERVICE. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-332-5933, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
1779AS158
NSN: 4730-01-332-5933
NIINs: 013325933, 013330130
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 30003 — NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
flow_angle90.0 DEGREES90.0 DEGREES
special_featuresSPECIAL CLEANING FOR OXYGEN SERVICE IAW DRAWING 30003 1552AS201SPECIAL CLEANING FOR OXYGEN SERVICE IAW DRAWING 30003 1552AS201
criticality_code_justificationFEATFEAT
reference_number_differentiating_characteristicsCLEANED IAW MIL-C-52211 CLASS D FOR OXYGEN SERVICECLEANED IAW MIL-C-52211 CLASS D FOR OXYGEN SERVICE
NSN4730-01-332-5933
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 1779AS158 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
FLOW ANGLE: 90.0 DEGREES90.0 DEGREES
•
CRITICALITY CODE JUSTIFICATION: FEATFEAT
TECHNICAL CHARACTERISTICS
FLOW ANGLE90.0 DEGREES90.0 DEGREES
CRITICALITY CODE JUSTIFICATIONFEATFEAT
SPECIAL FEATURESSPECIAL CLEANING FOR OXYGEN SERVICE IAW DRAWING 30003 1552AS201SPECIAL CLEANING FOR OXYGEN SERVICE IAW DRAWING 30003 1552AS201
SUBSTITUTES & CROSS-REFERENCES 2
4CTX-SSSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
3306361-1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1779AS158?
1779AS158 is a ELBOW,PIPE TO TUBE.
What parts can replace 1779AS158?
There are 2 known substitutes for 1779AS158: 4CTX-SS, 3306361-1. Substitute compatibility should be verified for your specific system.
What is the NSN for 1779AS158?
1779AS158 is cataloged in the U.S. Government catalog under NSN 4730-01-332-5933. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.